/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line256.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 21:09:57,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 21:09:57,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 21:09:57,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 21:09:57,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 21:09:57,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 21:09:57,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 21:09:57,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 21:09:57,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 21:09:57,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 21:09:57,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 21:09:57,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 21:09:57,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 21:09:57,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 21:09:57,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 21:09:57,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 21:09:57,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 21:09:57,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 21:09:57,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 21:09:57,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 21:09:57,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 21:09:57,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 21:09:57,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 21:09:57,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 21:09:57,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 21:09:57,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 21:09:57,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 21:09:57,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 21:09:57,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 21:09:57,775 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 21:09:57,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 21:09:57,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 21:09:57,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 21:09:57,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 21:09:57,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 21:09:57,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 21:09:57,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 21:09:57,778 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 21:09:57,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 21:09:57,778 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 21:09:57,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 21:09:57,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 21:09:57,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 21:09:57,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 21:09:57,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 21:09:57,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 21:09:57,779 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 21:09:57,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 21:09:57,779 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 21:09:57,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 21:09:57,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 21:09:57,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 21:09:57,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 21:09:57,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 21:09:57,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:09:57,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 21:09:57,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 21:09:57,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 21:09:57,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 21:09:57,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 21:09:57,781 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 21:09:57,781 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 21:09:57,781 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 21:09:57,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 21:09:57,781 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 21:09:57,781 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 21:09:57,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 21:09:57,782 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 21:09:58,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 21:09:58,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 21:09:58,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 21:09:58,037 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 21:09:58,038 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 21:09:58,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line256.bpl [2022-09-29 21:09:58,040 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line256.bpl' [2022-09-29 21:09:58,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 21:09:58,114 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 21:09:58,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 21:09:58,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 21:09:58,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 21:09:58,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:09:58" (1/1) ... [2022-09-29 21:09:58,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:09:58" (1/1) ... [2022-09-29 21:09:58,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:09:58" (1/1) ... [2022-09-29 21:09:58,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:09:58" (1/1) ... [2022-09-29 21:09:58,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:09:58" (1/1) ... [2022-09-29 21:09:58,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:09:58" (1/1) ... [2022-09-29 21:09:58,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:09:58" (1/1) ... [2022-09-29 21:09:58,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 21:09:58,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 21:09:58,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 21:09:58,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 21:09:58,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:09:58" (1/1) ... [2022-09-29 21:09:58,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:09:58,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:09:58,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-29 21:09:58,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-29 21:09:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-29 21:09:58,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-29 21:09:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-29 21:09:58,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-29 21:09:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-29 21:09:58,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-29 21:09:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 21:09:58,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 21:09:58,329 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 21:09:58,487 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 21:09:58,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 21:09:59,321 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 21:09:59,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 21:09:59,349 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-29 21:09:59,353 INFO L202 PluginConnector]: Adding new model chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:09:59 BoogieIcfgContainer [2022-09-29 21:09:59,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 21:09:59,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 21:09:59,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 21:09:59,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 21:09:59,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:09:58" (1/2) ... [2022-09-29 21:09:59,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97e661d and model type chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 09:09:59, skipping insertion in model container [2022-09-29 21:09:59,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line256.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:09:59" (2/2) ... [2022-09-29 21:09:59,363 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.line256.bpl [2022-09-29 21:09:59,371 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 21:09:59,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 21:09:59,385 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 21:09:59,385 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 21:09:59,605 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-29 21:09:59,690 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:09:59,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:09:59,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:09:59,693 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 21:09:59,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-09-29 21:09:59,724 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:09:59,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-09-29 21:09:59,737 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@569304be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:09:59,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:09:59,740 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-29 21:09:59,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 21:09:59,746 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 21:09:59,753 INFO L307 ceAbstractionStarter]: Result for error location thread1Err0ASSERT_VIOLATIONASSERT was SAFE (1/5) [2022-09-29 21:09:59,768 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:09:59,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:09:59,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:09:59,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 21:09:59,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-09-29 21:09:59,776 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:09:59,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 21:09:59,779 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@569304be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:09:59,779 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:09:59,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 21:09:59,879 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 21:09:59,879 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-09-29 21:09:59,893 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:09:59,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:09:59,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:09:59,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 21:09:59,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-09-29 21:09:59,943 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:09:59,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 21:09:59,944 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@569304be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:09:59,944 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:10:33,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 21:10:33,810 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 21:10:33,811 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-09-29 21:10:33,843 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:10:33,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:10:33,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:10:33,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 21:10:33,890 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:10:33,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 21:10:33,891 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@569304be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:10:33,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:10:33,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-09-29 21:10:34,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 21:10:34,148 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 21:10:34,148 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/5) [2022-09-29 21:10:34,157 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:10:34,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:10:34,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:10:34,160 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 21:10:34,166 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:10:34,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-09-29 21:10:34,167 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@569304be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:10:34,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:10:34,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-09-29 21:10:34,225 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:10:34,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:10:34,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1573707894, now seen corresponding path program 1 times [2022-09-29 21:10:34,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:10:34,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512188837] [2022-09-29 21:10:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:10:34,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:10:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:10:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 21:10:34,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:10:34,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512188837] [2022-09-29 21:10:34,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512188837] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:10:34,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:10:34,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 21:10:34,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243870316] [2022-09-29 21:10:34,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:10:34,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 21:10:34,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:10:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 21:10:34,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 21:10:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:10:34,966 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:10:34,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 189.5) internal successors, (379), 2 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:10:34,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:11:52,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:11:52,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 21:11:52,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:11:52,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:11:52,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1676661823, now seen corresponding path program 1 times [2022-09-29 21:11:52,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:11:52,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579042771] [2022-09-29 21:11:52,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:11:52,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:11:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:11:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 21:11:52,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:11:52,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579042771] [2022-09-29 21:11:52,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579042771] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:11:52,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:11:52,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 21:11:52,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736690125] [2022-09-29 21:11:52,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:11:52,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 21:11:52,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:11:52,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 21:11:52,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 21:11:52,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:11:52,982 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:11:52,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:11:52,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:11:52,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:12:34,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:12:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:12:34,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 21:12:34,342 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:12:34,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:12:34,344 INFO L85 PathProgramCache]: Analyzing trace with hash -613711607, now seen corresponding path program 1 times [2022-09-29 21:12:34,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:12:34,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928715353] [2022-09-29 21:12:34,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:12:34,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:12:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:12:34,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:12:34,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:12:34,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928715353] [2022-09-29 21:12:34,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928715353] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:12:34,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145190088] [2022-09-29 21:12:34,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:12:34,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:12:34,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:12:34,525 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 21:12:34,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-29 21:12:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:12:34,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-29 21:12:34,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:12:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:12:34,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 21:12:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:12:35,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145190088] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 21:12:35,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 21:12:35,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-09-29 21:12:35,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586984598] [2022-09-29 21:12:35,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 21:12:35,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-29 21:12:35,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:12:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-29 21:12:35,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-09-29 21:12:35,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:12:35,057 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:12:35,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 31.4) internal successors, (471), 15 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:12:35,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:12:35,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:12:35,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:13:27,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:13:27,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:13:27,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:13:27,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-09-29 21:13:27,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:13:27,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:13:27,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:13:27,488 INFO L85 PathProgramCache]: Analyzing trace with hash 422764553, now seen corresponding path program 2 times [2022-09-29 21:13:27,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:13:27,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345284694] [2022-09-29 21:13:27,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:13:27,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:13:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:13:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-09-29 21:13:28,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:13:28,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345284694] [2022-09-29 21:13:28,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345284694] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:13:28,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945937416] [2022-09-29 21:13:28,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-29 21:13:28,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:13:28,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:13:28,113 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 21:13:28,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-29 21:13:28,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-29 21:13:28,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 21:13:28,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 35 conjunts are in the unsatisfiable core [2022-09-29 21:13:28,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:13:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-09-29 21:13:29,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 21:13:29,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945937416] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:13:29,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 21:13:29,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2022-09-29 21:13:29,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526167789] [2022-09-29 21:13:29,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:13:29,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-29 21:13:29,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:13:29,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-29 21:13:29,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-09-29 21:13:29,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:13:29,047 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:13:29,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 37.27272727272727) internal successors, (410), 12 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:13:29,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:13:29,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:13:29,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:13:29,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:14:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:14:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:14:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:14:45,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 21:14:45,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-29 21:14:45,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:14:45,252 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:14:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:14:45,253 INFO L85 PathProgramCache]: Analyzing trace with hash 21360783, now seen corresponding path program 1 times [2022-09-29 21:14:45,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:14:45,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400529209] [2022-09-29 21:14:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:14:45,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:14:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:14:45,932 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-09-29 21:14:45,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:14:45,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400529209] [2022-09-29 21:14:45,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400529209] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:14:45,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22186682] [2022-09-29 21:14:45,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:14:45,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:14:45,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:14:45,943 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 21:14:45,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-29 21:14:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:14:46,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-29 21:14:46,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:14:46,424 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-09-29 21:14:46,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 21:14:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-09-29 21:14:46,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22186682] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 21:14:46,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 21:14:46,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-09-29 21:14:46,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419788040] [2022-09-29 21:14:46,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 21:14:46,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-29 21:14:46,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:14:46,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-29 21:14:46,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-09-29 21:14:46,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:14:46,609 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:14:46,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 25.318181818181817) internal successors, (557), 22 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:14:46,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:14:46,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:14:46,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:14:46,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 21:14:46,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:16:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:16:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:16:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:16:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 21:16:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 21:16:10,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-29 21:16:11,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:16:11,002 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:16:11,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:16:11,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1614471281, now seen corresponding path program 2 times [2022-09-29 21:16:11,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:16:11,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316655104] [2022-09-29 21:16:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:16:11,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:16:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:16:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-09-29 21:16:11,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:16:11,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316655104] [2022-09-29 21:16:11,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316655104] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:16:11,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:16:11,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-29 21:16:11,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056559879] [2022-09-29 21:16:11,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:16:11,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-29 21:16:11,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:16:11,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-29 21:16:11,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-29 21:16:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:16:11,764 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:16:11,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:16:11,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:16:11,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:16:11,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:16:11,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 21:16:11,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 21:16:11,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:17:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:17:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:17:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:17:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 21:17:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 21:17:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 21:17:33,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-29 21:17:33,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:17:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:17:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash -464521501, now seen corresponding path program 1 times [2022-09-29 21:17:33,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:17:33,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891050320] [2022-09-29 21:17:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:17:33,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:17:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:17:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2022-09-29 21:17:33,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:17:33,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891050320] [2022-09-29 21:17:33,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891050320] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:17:33,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:17:33,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 21:17:33,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402810600] [2022-09-29 21:17:33,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:17:33,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 21:17:33,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:17:33,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 21:17:33,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 21:17:33,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:17:33,519 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:17:33,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:17:33,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:17:33,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:17:33,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:17:33,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 21:17:33,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 21:17:33,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 21:17:33,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.